Price railway



2 Sheets- Sheet 1.

JfM. PRICE. ROLLING MILL.

Patented Mar.

'imam l Ju@ (No Model.) 2 Sheets-Sheet 2. .J. lVI. PRICE. ROLLINGMILL.

No. 448,073. v Patented Mar. 10, 1891.

qLVVITNESSES: o/.my-fa) JAMES M. PRICE, CF PHILADELPHIA, PENNSYLVANIA,ASSIGNOR YTO -THE PRICE RAILIYAY APPLIANCE COMPANY, CF PENNSYLVANIA..

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 448,073, dated March10, 1891.

Application filed J une 26,1890.

To all whom, it may concern: Be it known that I, JAMES M. PRICE, a citifzen of the United States, residing in the city and county ofPhiladelphia, State of Pennsylvania, have invented a new and useful Improvement in Rolling-Mills, which improvement is fully set forth in thefollowing speciication and accompanying drawings.

Myinvention consists of a machine for molding plate metal in the'form ofa series of truucated pyramids, the heads whereof are flat or level inone plane and the feet whereof are flat or level in another planeparallel with the former, but removed from the same by intervals, theproduct being serviceable Jfor crossties, stringers, trusses, the.

Figures l and 6 represent partial side elevations and partial verticalsections of molding-machines embodying my invention. Fig. 2 represents atop or plan view thereof. Fig. 3 represents a side elevation of adetached portion thereof. Fig. -i represents a section of the product orwork on line a; at, Fig. l. Fig. 5 represents a side elevation at aright angle to Fig. G. Fig. 7 represents a side elevation of a portionofFig. 6. Fig. 8 represents a section of the product or work on line yy, Fig. 6.

Similar letters and numerals of reference indicate corresponding partsin the several figures.

Referring to the drawings, A and B designate rolls which are mountedupon suitable housings having on the sides thereof the wheels or rims C,of different diameters, and having peripheries with concentric segmentalcircular toothed racks or gears A B, which are located at intervals onthe peripheries alternating on opposite rims, forming mutilated gearing.IYithin the rims are dies D, which are of the form of truncated pyramidsD', projecting from the rolls A and B, and faces D2 between saidpyramids at intervals, so that the anvils of one roll enter theintervals between the anvils of the other roll, and the heads of the-pyramids D of one roll are adapted to pass the faces D2 of the oppositeroll, a space for the metal exist-ing between the heads, faces, andsides of opposite anvils, as will be most clearly seen in Fig. 1, itbeing noticed that the heads of the Serial No. 356,758. (No model.)

pyramids D and the faces D2 meet in the same plane, they being, as isevident, of different diameters.

It will be seen that when power is imparted to the rolls the gears ofadjacent rims successively engage and disengage, imparting intermittentmotions to the anvls. As the metal passes between a pair of associatedies it receives alternate speed or rate of motion, according as itsface emerges from contact with said dies, and the parts D of one dieforce the metal against the parts D2 of the other die, thus crimping orbending the same into undulating form or the form of truncated pyramidsin reversed order, or with heads 1, sides 2, and bases or feet 3.

VThe dies may be one, two, three, four, or more in number to each roll,according to convenience or purposes of dimensions required. Thesurfaces of the molds may be iiat or straight in transverse direction,or slanted, or they may be grooved on the edges and sides in order toform flanges on the cross-pieces, stringers, trusses, ttc., as will beseen in Figs. 5 and S.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A pair of rolls with dies for shaping metal into a series ofundulating truncated pyramids connected at base, and with heads and feetin parallel planes, substantially as described.

2. A pair of rolls formed with one or more dies curved circularly ontheir outer faces and projecting from a crculardie of smaller diameter.

3. A pair of rolls embraced or confined between two concentric toothedrims of different diameters adapted to drive reciprocal rims or wheelsupon or attached to the opposing roll, substantially as described.

4. A pair of rolls confined between two concentric toothed rims ofdiverse diameters, of which for each so many teeth shall have beenomitted or removed as shall permit the one pair of wheels attached tothe driving-axle so to engage and disengage the opposing pair as toproduce harmony of action, regardless of the difference of diameter,substantially as described.

IOO

o. The alternate engagement and disengagement of two pairs of toothedwheels or rims, of diverse diameters, interlocking the large with itssmall opponent, said rims having mutilated gearing, substantially asdescribed.

G. Toothed rims or wheels provided with mutilated gearing and in pairsof different diameter, interlocking the small one with the oppositelarge, so as to make continuous inotion at different speeds in machinerythereby driven, substantially as described.

7. A pair of rolls, each confined between a pair of toothed rims orwheels of diverse diameter, and but one pair of these rolls and one pairof concentric wheels being attached to the driving-axle, the other to bemoved by its fellow with alternate speed and slowness, according tothediameter of the toothed wheel in action, substantially as described.

8. Dies with curved exterior faces, the sectional part so far of acylinder, either smooth or guttered to lit the metal to be passedbetween them, and resting at their base upon ares or sections of asmaller concentric cylinder, forming part of the same block or roll forrolling and Shaping metal, substantially as described.

9. Dies of curved exterior face, smooth and fiat on the transverse lineor guttered longitudinally, around which metal is passed and shaped byrolling between toothed wheels embraced by suitable housings to producea series of connected truncated pyramids, substantially as described.

l0. Dies of curved exterior so placed on opposing rolls or blocks as tofall into the interspaces or intervals between the opposite pair of4molds and press smoothly and firmly between their sides and upon theirfaces against the interposed metal, curve against curve, circular dieagainst circular base covered by the metal interposed, substantially asdescribed.

JAMES M. PRICE. Witnesses:

JOHN A. WIEDERSHEIM, A. P. JENNINGs.

